Setts



J. H. vmrom HEEL TURNING MACHINE BLOCK HOLDER.

APPLICATION FILED MAY 20, I920. v Patented N0v.'22, 1921.

3 SHEETS-SHEET 1.

1.11. VINTON HEEL TURNING MACHINE- BLOCK HOLDER. v

APPLICATION FILED MAY 20, I920; I I 1,397,844, Patented Nov. 22, 1921.

3 SHEETS-SHEET 2.

J. H. VINTONL HEEL TURNING MACHINE BLOCK HOLDER.

' APPLICATION FILED MAY 20, I920. 1,397,844. Patented Nov. 22,

3 SHEETS-SHEET 3.

Ji g uNi an sr'ras PATENT caries.

JOHN H. VINTON, or KEENE, New HAMPSHIRE, AssIdnon 'r'o BAXTER n. WHITNEY & son, Inc, or w ncnniinon, MASSACHUSETTS,

SETTS.

A coarona'rion or MASSACHU- HEEL-TURNING -MACHINE BLOCK-HOLDER.

' Specification ofLetters Patent. Patented Nov. 22, 1921.

Application filed May 20; 1920. 7' Serial No. 382,848

chine Block-Holders, of which the following is a specification.

This invention relates to an improvement in heel turning machine block holders.

The object of the invention is to provide a holder for blocks of wood out'of which heels are to be made by shaping said blocks of wood by means of vertical rotary cutters, the holder being positioned upon a swinging arm and pivoted thereon so that in conjunction with certain cam-shaped tracks and formers the block may be positioned relatively to a pair of rotary cutters so as to form a block. to the shape of a heel first on one side of said block cooperating with one cutter and second on the opposite side of the block cooperating with another cutter, the block when finally shaped as set forth forming a wooden heel for boots or shoes.

It is very'essential in machines of this character that the block should be very firmly held in position in every direction while the cutting operation is taking place and it is one of the objects of this invention to provide a holder for theblock which so positions and vholds the same that heels produced by the machine will be correctly formed and will be duplicates.

V In machines of this characterit is desirable and in fact essential thatheels of different sizes; shapes and heights may be formed thereon and it is one of the objects of thisinvention to provide a'holderfor the block which can be adjusted and adapted to clamp blocks of different heightsfirmly in position and furthermore to provide a device 011 which heels of different shapes and thicknesses may be formed.

It has been found in machines of this character that there is a tendency for the cutter to lift the block holder during the accurately adjusted and held in adjusted -position to secure the objects hereinbefore set forth. 1 j

To these ends the invention consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims thereof.

Referring to the drawings? Figure 1 is a side elevation partly in section of my improved block holder showing the same positioned upon a portion of a heel turning machine.

Fig. 2 is a detail sectional elevation taken on the line 22, Fig. 1.

Fig. 8 is a detail sectional elevation taken on the line 33, Fig. 1.

Fig. 4 is a detail side elevation of the primary frame.

I Fig. 5 is a plan View of my improved lock holder showing the same in connection with a portion of a heel turning machine.

1 .Fig. 6 is a plan view of the block holder plate.

Figs-7 to 12 inclusive are diagrammatic plan views illustrating the different posi tions which are assumed by the block holder and its former relatively to the cutter.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 15 is the frame of the heel turning machine, 16 and 17 are the cutters which are fast to vertical rotary shafts 18 and 19 respectively, said. shafts being rotatably mounted in hearings on the frame of the machine. 20 is a vertical shaft'upon which is mounted an arm 21. The arm 21 is provided with bearings 22 and 23 in which is slidably and rotatably mounted a shaft 24:. The shaft 24: has a collar 25 fastened thereto and between this collar and the lower end of the bearing 22 said shaft 24 is encircled by a spring 26, the tendency of said spring being to hold the shaft 24 downwardly. To the lower end of the shaft 24 is fastened an arm 27 and journaled to said arm is a long roll 28 which is adapted, when the machine is in operation, to engage a cam shaft track 29. When the machine is not in operation then said camshaft track will engage a fiat surface 30 upon the under side of said arm 27.

position by set screws 51.

The upper end of the shaft 24.11113 a former '31 fastened thereto which in the operation of the machine is ada ted to engg 'des 32 and 3 f ae'here nafter de: son A frame-hol r34. 18 81 9 fastened to the upper end ofthe shaft 24 and is slotted at 35 to receive 1! portion of a primary frame 36 which projects into said slot and is, pivoted'to the frame-holder 34 at 37. A screw 38"projects through the frame-holder 34 and 'thnough'theslot 35- opposite sides-of the slot 35 in the holder 34 will be taken up sothat the frame 36.

may always havea suitably snug fit in the slot 35. A block ofwood 42 rests upon a support 43 which is fastened to and forms in effect a portion of the primary frame 36.

A gage 44 is adjustably fastened, by means of a screw 45 to'the primaryframe 36. r

The block 42 is clamped against the support 43 by a primary clamping memberf46, said primary clamping member being pivotally mounted upon a pin, 47'which is supported in a standard 48 forming a portion of an auxiliar frame 49. The auxiliary frame49 is s'lid ably mounted transversely of the shaft 24 upon ways 50 provided upon the primary frame 36 and isheld in adjusted The primary clampin member 46 is bifurcated to allow the auxi iary frame 49 to project upwardly therethrough, and upon the upper end of said auxiliary frame a secondary clamping member 53 is pivoted at 54. An adjusting screw 55 has screw-threaded engagement with the front end of said secondary clamping member and the lower end thereof rests against the upper edge of the primary clamping member 46 at, its forward. end. The screw 55 is locked in adjusted position by a set nut 56. A toggle lever 57 is pivoted at 58 to the rear end ofthe secondary clampin member 53. Said toggle lever is rovided' with a handle '59. A pair of hnks 60 are mounted upon the pin 47 at their lower ends and at their upper ends are 'con-,

nected to, the toggle levee:v 57 b" a pin 61. When the togglelever '57: and t e links 60 are in the position illustrated in ful'llines,

' Fig. 1, then the secondary clamping member is in position to force the primary clamping member downwardly at its forward end, and by so doing to. force a jaw 62 which is, at-

tached to said primary clampin member a ainst the block '42 and thu sto c amp said block twee t jaw" 2 n the 1 p. f 43. When the toggle lever 57 move 7 to the position illustrated in dotted'linesFig.

1, the links 60 and the secondary cl amping holder 'and 'to'do t member assume the {positions illustrated in dotted lines in said gure. and the primary clamping member 46 is raised to the position illustrated indptted linesby a fiat s ring 63 which, at its rear end, is fastene to the auxiliary frame 49, and at its front end bears against; thegunder side ofvthe primary clamping member 46. When the toggle leveris moved to its lowered position indicatedin full lines Fig. 1,it is stopped from further'movement in the same direction by a stop screw 64 which is fastened to thearm 48 of the auxiliary frame 49, and when in this position the pivots of the links and of the toggle lever'are in alinement so that the greatest power of the toggle consisting of the igggle lever and the toggle links is then in ect and theblock is clamped in position between the jaw 62 and the support 43 and the parts are then locked in clamping position. The frame'36 is provided with a roll 65 which is journaled upon a bracket 66 fast to the underside of the auxiliary frame 49 and said bracket is extended downwardly at 67 to form an arm which is adapted to engage a stop or projection 68 fastened to a cam shaft track 69 which in turn is supported upon-the frame '15 of the machine 'and'i's engaged'by the roll 65; Both the track 29 andthe track 69 may be adjusted upwardly and downwardly by means of adjusting screws 70 and 71 respectively, which adjusting screws have screw-threaded engagement with brackets 72'and '73 fast to the frame. 15 of the'machine.

It is very essential in the operation of the machine that the block of wood which is shapedfby cutters to make a heel should be at all times held firmly in position in every direction and also that it should be positioned so that the center line of the heel when completed will coincide with the center line of the shaft 24 and to accomplish this for different sizes of heels the gage 44 is adjusted so that inde endent of the size of the heel the block will be so positioned that in the finished heelthe centerline will coincide with the centerline of the shaft 24.

I It is also very essential that different heights of heels may-be clamped in the same "s different jaws 62 are provided, also in different heels there is a variation in theinclination of the tread of the heel or of the: up er and lower surfaces of the block from w ich the heel is to be made and this variation is compensated for by tipping the jaw 62 upon its pivot 74, otherwise 1f the jaw 62. were rigidly fastened to the primary clamping member 46, the block would'be tipped upon its support 43 and usead o imperfec work.

It is also desirable that in a device of this character the primary clamping member, the

secondary; clamping member and i the toggle device should be adjustable simultaneously be raised to the dotted position illustrated in Fig. 1 by the spring 63. .The block having clamping member and its jaw 62 maybe positioned to suit varying shapesand sizes of heels, and this is accomplished in this embodiment of my invention by adjusting the auxiliary frame 49 together with its arm 48 forwardly or backwardly upon the ways 50 and then clamping the auxiliary'frame to the ways 50 by means of the set screws 51.

It will be seen that the support 43 being fastened to the frame 36 by a screw 43-", different supports may be attached to said .frame, of different contours, lengths and widths and also of different thicknessesas may be desired to. accommodate different shapes, sizes or heightsJof blocks and heels which are formed from said blocks.

It will beunderstood that the primary frame 36 and the auxiliary frame 49 form together in effect a single frame and in some of the claims the word frame is used with this meaning.

The general operation. of the mechanism hereinbefore specifically described is as fol lows: A block of wood is placed upon the support 43 with the front edge of the block corresponding to the breast of the finished heel abutting against the gage 44. ,At this time the handle 59 of the toggle lever 57 will be in its raised or dotted position, Fig. 1. The clamping member 53 and the links will 7 also be in the dotted positions shown in Fig.

l and the primary clamping member will been placed in position,.the handle 59' is now pushed downwardly from the dotted osition to the full position illustrated in Fig. 1,

thus causing the toggle links and their pivots and the pivot of the toggle lever to be brought into alinement with each other and causing the secondary clamping member 53 through the. screw to force the primary clamping member and its jaw 62 downwardly, thus firmly clampingthe block 42 in position against ,itsholder 43, At this time the longitudinal median plane B--B, Fig. 7, of the holder coincides with the longitudinal median plane A-A of the arm 21. y

The operator moves the holderand the parts sup orted thereon until the center lines Ar and B-B of the armand holder respectively assume the .relative positions illustrated in Fig. 8 with the former 31 in engagement with the guide 32 and with one side of the block in engagement with the cutter 16, the operator then turns the holder and its supporting arm counter-clockwise the block being held in engagement with the cutter 16 until the parts arrive in the position illustrated in Fig. 9. During these motions the former 31-is held against the guide 32 and the frame 36 is raised and lowered by means of the shaft 24, arm 27 and track of the roll- 65 and cam shaped track 69 in order to produce the proper shaped contour for the heel of the shoe on one side of the heel from the breast to the middle of the back of said heel, all in a manner well known to those-skilled in this art.

The operator having finished one side of the heel now moves the parts to the position illustrated in Fig. 10 which is the same as the position illustrated in Fig. 7 and then moves the. parts until their center lines A-A and B-B' assume the positions illustrated in Fig. 11 and'finally to the positions illustrated in Fig. 12, thus completing the forming of the heelof the shoe.

. The parts are then moved back to the position illustrated in Fig. 7 and the toggle lever 57 is thrown into the position illustrated in dotted lines, Fig. 1, thus releasing the heel of the shoe and allowing it to be removed by the operator from the holder.

I claimz' 1. A heel turning machine block holder block, a primary clamping member adapted to engage said block, a pivot for said primary clamplng member, and a lever const1- tutmg a secondary clamping member and.

adapted to engage said primary clamping member and cause thesame to engage said block and force it against said support,fand a toggle device connected to said secondary clamping member and adapted to cause the same to engage said primary clamping member and lock said primary and said secondary clamping members in position with said block clamped against said support.

2. A heel turning machine block holder having, in combination, a support for a block, a frame constituting a portion thereof, a frame-holder upon which said frame is plvoted, a prlmary clamplng member pivoted to said frame, a lever constituting a secondary clamping member pivoted to said frame, a toggle lever pivoted to said secondary clamping member and a to le link conn I nectlng .sald' toggle lever to said frame whereby said secondary clamping member may be caused, to engage said primary clamping member andcooperate with the same to force said block against said support.

having, in combination, a support for a block, a frame constituting a portion there- 3. A heel turning machine block holder,"

having, in combination, a support block, a frame constitutin' I a portion there oted to sai member may be caused to coiiperate wi said primary clamping member to forcesaid block against said support ,7

4. A heel turning machine block hfolder or a ing pivotally connected to ,said' secondary clamping member and the: other to said frame whereby" said secondary clamping member may be causedto cooperate with said primary clamping member to force said block against said 'su ort, and means to limit the distance to w 1ch said togglel ever can be rocked in one direction. 5} A, heel turning machine block holder having, in combination, a support for a block, a primary frame constltuting a portion thereof, a frame holde j upon which said primary frame is pivoted, a vertical shaft constituting a pivot for said frame holder, an auxiliary frame slidable upon said primar shaft a primary elamping m'ember pivoted on said auxiliary frame, a secondary clamping member pivoted on said auxiliary frame and adapted to coiiperate with said primary clamping member to cause it to engage said block and clamp said block to saidsuppprt.

and a toggle deviceadapted to lock; saidsecondary clamping member in po'sitionwith said primary clamping member forcing said block Aa ainst said-support.

on said auxiliary frame, a'secondary clamping member pivoted on said auxiliary frame and adapted to cooperate with said primary clamping member to'cause it to engage said block and clamp said block to said sup ort, a toggle lever pivoted to said seeon ary clamping member, and a toggle link pivoted to said auxiliary frame and pivotallye connected to said toggle lever whereby said secondary clamping member may be caused to engage said primary clamping member to force said block against said support and lock said clamping members in osition.

7. A heel turning machine having, in combination, a support for a block, a frame constituting a portion of said support, a primary clamping member piv- 7 having, in combination, a support f am n v se y o Said," rt cal v transversely of said rock shaft, a cam eelturning machine block holder having, in combination, a support for a of said rock shaft, a seeon ock holder w re oted to said frame and adapted to en age said block, a lever-constitut ng a secon ary clamping rnember. pivotedto said frame and adapted to en a e rimary clamping member, a togg 'e device adapted to'lock said primary an'd'secondary clamping members in position with saidblock clamped against said support, a roll journaled upon said frame and extending transversely of said shaft and a cam shaped track upon which said roll isadapted to travel whereby a .rocking motion may be imparted to said frame. a v

. 8. A heel. turning. machine block hfolder or a block, a frame constitutin a portion thereof, a frame holder upon which said frame is pivoted, a'vertical. shaft to which said frame'holder is fasteneia primary clamping member pivoted to saidjlframe and adapt ed to engage said block, a lever constituting a secon ary clamping member pivoted to said frame and adapted to engage said pri- -mary clamping a to lo device adapted to lock" said primary an fsecondary clamping members in pos tion with said block clamped against said sup rt, a roll journaled .upon'said frame an 1 extending shaped track upon which said roll is adapted to travel whereby a rocking motion may be im arted to-said frame, an fastened to said rock shaft, a roll journaled upon said am and extending transversely of said rock shaft and a second cam sha ed track adapted to be e ged by said set mentioned roll where ya vertical movement may be imparted to said block holder.

9. A heel turning'fmachine block holder having, in combination, a support for a block, a frame constitutin a portion theresaid vrock shaft, a cam-shaped track upon which said roll is ada ted to travel, an arm fastened to said'rock s aft a roll journaled upon said arm and extendin I i cam-shaped track adapted to be engaged by said lastmentioned roll, and a spring acting to move said rock shaft downwardly, whereby said rolls may be held in engagement with their respective tracks and a combined vertical and rocking motionim arted to said frame. In testimony whereo I' have hereunto set my hand in presence ofa subscribing witness. r

' I JOHN H. VINTON..

. Witness:

FRANKLIN E, Low,

transversely 

